Rim-contracting tool



i' May 7, 1929- D.. J. RAYMQND 1,712,169

RIM CONTRACTING TOOL Original Filed May 3, 1923 noem/V601,

Z7 j v Gtromwy Patented May 7, 1929.

- Ugrr arras "aar" s.,

imita y DANIEL :L RAYMOND, Aor wnrenrsrown, Wisconsin."

aria-CONTRACTING Toon.

f Application mea may, s, 1923, serial My invention relates to rim tools. j Y

An object of my vinvention is to provide a rim contracting tool which is easily and cheaply made and which is strong and sturdy in construction.

Another object of my invention is to procontracting vide a tool whereby a demountable rim-may danger of injury. The costs of manufac-V ture, replacement and repair of these krimsare large. It is to overcome the disadvantages oi the existing prior art devices that this invention has been conceived.

proportions and arrangement, without departing from the spirit and scope of the appended claim.

Injorder to make my invention moreV clearly understood, I have shown in the accompanyingdrawings means for carrying .the same into practical effect without limiting the improvements in their useful applications to the particular constructions, which for the purpose oi explanation, have been made the subject of illust-rationi ln the drawings:

Figure 1 is a top plan view of my demountable rim vwith the detachable operating tool in position for deforming the rim;

Fig. 2 is a view in longitudinal crossv section of my device taken on the lines 2-2 of Fig. 1, looking in the direction of the arrows Fig. 3 is a longitudinal cross sectional view of my device on the lines 2 2 of Fig.

1, looking in thedirection of the arrows,

showing the position of the parts after the lbeen accomplished;Y l Fig. 4 is a cross sectional viewtalen on No. 636,300. Renewed June e, 1928. 4 i

deformation and shrinking of thev rim has thelines'fl-l of Fig. 1 rection of the arrows; v Fig. 5 is a ydetailed perspective view of my detachable.'operating tool; Y' F ig. 6 is a topplan view of a modiiicationiof Vmy device in which the support 'piece is shown fastened to one side oi the split by means of spot welding.

Referring to the drawings, (Figs. 1 to 5 inclusive) I have illustrated. a demountable tire rim 1 having va diagonal split 2 therein dividing the rim so as to` provide two free ends 3 and 4. A tire `5, only a portion of' the tube .being shown, is adapted to be mounted on lthe outside of the rim 1 and a. A valve stem 6 protrudes through a tire valve Y hol-e 7 in the end ofthe rim. Mounted on the end 3 of the rim is a support piece 8, preferably of integrally formed U-shaped metal, having upstandingsides 9.'

The support piece8 is attached by means of rivet-s 11, see Figs. 1, 2 and 3, tothe end 3 of the rim. The rivets 11 are spaced along the lengthof the supportJ` piece 8 and firmlyv hold the support piece 8 .against Adisplace- 'ment in any direction. A portion of the ,support piece 8 in the position of the tire ,shown intFigs. 1 and2 is adapted to extend beyond thesplit 2 andto normally-.lie in contact with the inner surface of the end 4l of the rim. a latch 12 which is irmly fastened to thesection 4, and is adapted to project through a slot-13 inthe support piece 8 and lirmly lock the two ends 3 and i together through i the medium of a Cotter key 12v or any other suitable pin projecting through the slot 18,- as shown in Figure 6, when an inflated tire is in place on the rim. The upstanding sides 9 have adjacent cut out portions'ld within which is adapted to tit one of the bolts (not shown) which hold the rim to the The end 4; of the rim carries ioo telly in the usual manner, whereby the rimv is an offset portion 18. Mounted on the portion 18 is a socket wrench 19 to remove the wedges that hold the rim, thus giving the l able operating lever is anv outstanding army tool a double utility in that it may be used 'to demount a tire orY remove the wedges.

The entire length ofthe demountabletool has a slight bend, as indicated in Figs. 2, 3

and 5, to enable it to loevreadily placed Vin position on the interior of the split rim.

Mounted -on the portion 18 of the detach- 21 firmly secured to the portion 18.` The outstanding arm- 21 is adapted to fit within l ther'holes 15 in the upstanding sides 9 of 1the pivoted.

The link 23 is adapted to readilypivot on the stud 22 and is held in pla-ce by riveting the end ofthe stud 22, as indicated 'in i V'Fig 1 by the numeral 26. The upstanding arms 24: are preferably'integrally formedy with the link 23, and upon the other end of the link 23 is formed aV downwardly proj ecting lug 27 which is adapted to engage the valve hole of the demountable rim and toA pass between the valve stem 6 and the wall rof the'holef'.` A handle 28 is provided on theend of the portion 16 of the detachable operating lever.

In operation, the outstanding arm 21 is inserted within the holes 15 in the upstanding sides of the support piece 8. VThe-lug 27 on the end of the link 23 is passed down into the valve stem hole 7 past the Valve stem 6. The lug 27 is adapted to fit rather tightly between the wall of the hole 7 and the valve stem 6, and this tends to hold the I link firmly during the early stage of .the

shrinking operation. The handle 28 is then f lifted to deform the rim and the portions of the split rim take the position shown in Fig.

3, whereinl the riml circumference is materially reduced and the tirefcasing may be readily removed. The lever action is quite powerful, since the distance between the stud 22-aiid the outstanding arm 21 is much less than Vthe distance between the outstand ing arm 21 and the handle 28,

As will be apparent, fthedetachable operi ating lever, by means of the link 23, provides its own firnisupport on the vend l of the rim and it is unnecessary to'have any auxiliary and permanently attached structure to aid the operation.r

Referring to Fig. 6, I have shown a modi,-

fication wherein the portion of the Vsupport piece attached'to the end 3ofv vthe demountable rim is materially shortened. rihis is accomplished by causing the supportpiece 8 to be attached to the rend 3, by spot welding the support piece at theopposite' points 29 and 31 at one end and opposite points 32 aiid"33 at the other` end. This spot welding,

by reasonof its great strength, enables the amountk of metal'used in the support piece 8 to be materially decreased and yet insuresv great sturdiness 'and rigidity.

wWhile I have yshown and described the preferred embodiment of myl invention, VI

wish it to be understood that l, do notco-nfine myself to the precise ldetails of construction herein set forth by way of illustration, as it is apparent that many changes and variations'may be made `therein, by those skilled in the art, without departing from the spirit of the invention, or exceeding the scope of the appended claim. I claim.: i

A rim contracting tool comprising a lever, a plate pivoted to one end of the lever, a lug `upon the free end of the plate, a lateral arm upon the lever adjacent to the pivotalV end and a lateral handle upon the yother end of the lever. Y

In testimony whereof I aiiiX my signature.

DANIEL J. RAYMOND. 

